Which Twilight Zone episode is your personal nightmare?

Consider if you will a quiz, a measure of your deepest fears. All of us are frightened of something that keeps us up at night. The genius of The Twilight Zone is that the show managed to find that inner fear in all of us.

Over five decades later, Rod Serling's classic television series still manages to dazzle and frighten us with its moral tales of suspense and surprise endings. Whether you're afraid of heights, spiders or aging, there is one episode of The Twilight Zone custom tailored to make your skin crawl.

Answer these questions and discover which episode is your worst nightmare.